linux-kernel - [PATCH] intel_menlo: max_state is unsigned, invalid test

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Message-ID: <4908D067.9080207@gmail.com>
Date:	Wed, 29 Oct 2008 17:06:47 -0400
From:	roel kluin <roel.kluin@...il.com>
To:	len.brown@...el.com
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH] intel_menlo: max_state is unsigned, invalid test

max_state is unsigned, so the test is invalid.

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
I think max_state can only become -1, no? then probably a different
patch is required.
I may not be able to respond for a few weeks.

diff --git a/drivers/misc/intel_menlow.c b/drivers/misc/intel_menlow.c
index e00a275..980171d 100644
--- a/drivers/misc/intel_menlow.c
+++ b/drivers/misc/intel_menlow.c
@@ -121,7 +121,7 @@ static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev,
 	if (memory_get_int_max_bandwidth(cdev, &max_state))
 		return -EFAULT;
 
-	if (max_state < 0 || state > max_state)
+	if (max_state == -1 || state > max_state)
 		return -EINVAL;
 
 	arg_list.count = 1;

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